CASSANDRA L. KARN P.A.
NPI 1245247774
Physician Assistant in Mission Viejo, CA

Q: What is Cassandra Karn's NPI number?

The NPI number for Cassandra Karn is 1245247774. It was assigned to this individual provider in the NPPES registry on August 1, 2006. The provider is also known as Cassandra L. Miller P.A..

Q: What is Cassandra Karn's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

Q: When was this NPI record last updated?

The NPPES record for Cassandra Karn was last updated on July 9, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since August 01, 2006PECOS Enrolled

27700 MEDICAL CENTER RD, MISSION VIEJO, CA 92691(949) 365-3862 Get Directions Write a Review

NPPES record last updated: July 9, 2010. Verified against the NPPES registry weekly; last sync: August 16, 2026.

On this page

About Cassandra L. Karn P.a. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

CASSANDRA L. KARN P.A. (NPI 1245247774) is an individual physician assistant in Mission Viejo, California, licensed in California (PA16936) and active in the NPI registry since August 2006. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1245247774

Entity TypeIndividualFemale

Primary Taxonomy363A00000X

Provider Legal NameCASSANDRA L. KARNCredential: P.A.

Location Address27700 MEDICAL CENTER RDMission Viejo, CA 92691-6426

Mailing Address2185 Avenida EspadaSan Clemente, CA 92673-5604 · (949) 291-1931

Phone(949) 365-3862

Sole ProprietorNo

Enumeration DateAugust 1, 2006

Last NPPES UpdateJuly 9, 2010

✔ NPI 1245247774 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363A00000X

License✔ Licensed in CA · PA16936

Definition

A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.

27700 MEDICAL CENTER RD, Mission Viejo, CA 92691

Open in Google Maps ↗

Other Names 1

Former Name (1)Cassandra L. Miller P.a.

Other Identifiers 3

MedicaidPA16936CA

Medicare PINWPA16936CCA

Medicare UPINQ02965CA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Cassandra L. Karn P.a. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 5

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Emergency department visit with high level of medical decision making 99285

An emergency department visit for severe conditions is when you urgently seek medical help due to serious health issues. These could be severe injuries, breathing problems, unbearable pain, or sudden severe illness. Doctors and nurses will provide immediate care to stabilize your condition.

35 services34 patients

Emergency department visit with moderate level of medical decision making 99284

An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.

32 services32 patients

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 93010

A routine electrocardiogram (ECG) with 12 leads is a simple, non-invasive test that records the electrical activity of your heart. It helps in identifying heart conditions by detecting irregularities in your heart rhythms. The results are interpreted and a report is provided.

20 services18 patients

Critical care, first 30-74 minutes 99291

Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.

13 services13 patients

Emergency department visit with low level of medical decision making 99283

An emergency department visit for a problem of moderate severity involves immediate medical attention for issues like minor fractures, burns, or high fever. The healthcare team will assess your condition, provide necessary treatment, and may suggest further tests or admission if required.

11 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92691 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$96.36 typical visit price

range $62.96 – $187.60

Typical copayment $24.09 (range $15.74 – $46.90)

Most-billed visit code 99203

Established Patient

$77.96 typical visit price

range $20.84 – $153.61

Typical copayment $19.49 (range $5.21 – $38.40)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

CHELSEA ZIMMERMAN

Nurse Practitioner (Acute Care)